“Different” “laid-back” spaces – including a tavern-style front room featuring “large portions” of “classed-up” American pub fare and “expertly made” cocktails, a “chill” lounge for shuffleboard and other games, and a “lovely" outdoor space – set the “unique” mood at this Union Square eatery; “reasonable prices” and a “pleasant” staff only add to its “potential” as a “fun” “hangout.”